VDB-326346 · CVE-2025-59668 · EUVD-2025-31674

Nihon Kohden Central Monitor CNS-6201 up to 02-40 UDP Packet null pointer dereference

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Nihon Kohden Central Monitor CNS-6201 up to 02-40. It has been declared as problematic. This impacts an unknown function of the component UDP Packet Handler. The manipulation results in null pointer dereference. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is identified as CVE-2025-59668. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Nihon Kohden Central Monitor CNS-6201 up to 02-40. It has been classified as critical. Affected is some unknown processing of the component UDP Packet Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:

Multiple versions of Central Monitor CNS-6201 contain a NULL pointer dereference vulnerability. When processing a crafted certain UDP packet, the affected device may abnormally terminate.

The advisory is available at nihonkohden.com. This vulnerability is traded as CVE-2025-59668 since 09/18/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-31674). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Nihon Kohden

Name

Central Monitor CNS-6201

Version

Support

end of life

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (jpcert): 🔒

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/18/2025 CVE reserved
09/30/2025 +12 days Advisory disclosed
09/30/2025 +0 days VulDB entry created
09/30/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: nihonkohden.com
Status: Not defined

CVE: CVE-2025-59668 (🔒)
GCVE (CVE): GCVE-0-2025-59668
GCVE (VulDB): GCVE-100-326346
EUVD: 🔒

Entryinfo

Created: 09/30/2025 08:30
Updated: 09/30/2025 09:10
Changes: 09/30/2025 08:30 (75), 09/30/2025 09:10 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.